Description of a Computer Fault Detector and Net Isolator

摘要

The reliability of a simple network can be improved by the use of highly reliabledevices that monitor all sending elements attached to it. Such devices block network access if special electrical keys are not present before network communications are initiated. Such devices can also lock out network access for messages that exceed preset time limits. This report describes the construction of a simple device that serves these functions, termed a computer fault detector and net isolator, and describes the philosophy of its operation. The use of monitors of this type prevents the possible failure of a single sending element or node from disrupting the operation of an entire network.